Girder-slot-rail crossing



2 Sheets-Sheet 1'.

(No Model.)

B. B. ENTWISLE.

GIRDER SLOT RAIL CROSSING.

. Patented Aug. 2,1887.

Fig. 1

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(No Model.) 2 Sheets-Sheet 2.

E. B. ENTWISLE.

, GIRDER'SLOT RAIL CROSSING.

No. 367,746. Pat'ented Aug. 2, 1887.

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UNITED STATES PATENT OFFICE.

EDlVARD B. ENTVISLE, OF JOHNSTOVVN, PENNSYLVANIA, ASSIGNOR TO THEJOHNSON STEEL STREET RAIL COMPANY, OF KENTUCKY.

GlRDER-SLOT-RAIL CROSSING.

SPECIFICATION forming part of Letters Patent No. 367,746, dated August2, 1887.

Application filed May 28, 1887. Serial No. 239,599.

To all whom it may concern.-

Be it known that I, EDWARD B. EN'rwIsLE, of Johnstown, in the county ofOambria and State of Pennsylvania, have invented a new and usefulGirder-SlotRail Crossing, which invention is fully set forth andillustrated in the following specification and accompanying drawings.

The object of this invention is both to ob- :o viate the jar occasionedby such crossings as usually constructed to the wheels of crossing cars,as well as to prevent all wear upon the slot-rails crossed by theflanges of the wheels of crossing cars.

The invention will first be fully described, and then particularly setforth in the claims.

In the accompanying drawings, Figure 1 illustrates in perspective aside-bearing girderrail crossing one form of slot-rail. Fig. 2il1us- 2otrates in perspective a girder-rail crossinganother form of slot-rail.Fig. 3 illustrates an end View, partly in section, one slot-rail beingremoved, of Fig. 2. Fig. 4 illustrates in perspective a center-hearinggirder-rail crossing a thirdform of slot-rail.

In said figures the several parts are indicated by letters of reference,by means of gvhich said parts will now be described, as folows:

In all of said figures the letters 13 illustrate the slot-railcrossed,the exact form of which rail, however, is immaterial, those illustratedin the several figures representing theforms of such rails most used ingeneral practice.

The letters A Aindicate side-bearing rails, F F guard-rails, and J Jcenter hearing girderrails.

The letters D D indicate splicebars angled to fit against the web of agirder-rail and .40 the side of a slot-rail. As each siotrail isbeveled, the splice-bars D are angled in two directions. Saidsplice-bars are secured to the slot-rails by the bolts (Z d. Said boltsmay be stud-bolts, but they are preferably, as shown 45 in the drawings,bolts with small and non-obstructive heads on the interior of theslotrails, and their threaded ends are provided with nuts on the outsideof the splice-bars.

In Figs. 1 and 4 the side tram and the un (No model.)

der part of the head of each crossing rail are cut away so as to let thehead of each crossing rail lap over the slot-rail and come flush withits inner edge, as shown at a a and j 3', respectively. The distancebetween the ends of thelapping heads of said rails, it will thus beseen, is only equal to the width of the slot between the slot-rails. Thewebs of the crossing rails are also cut away so as to permit their headsto come into close contact with the slotrails.

In Figs. 2 and 3 the web and a part of the lower portion of the head ofthe crossing rail is cut away, and a portion of the slot-rail is alsocut away. \Vhere the guard-rail is used, it is advisable not to cut thefloor K entirely 6 away, as the guard L would then be rendered weak andnot well sustained, and as itis at the same time desirable that the headF and guard L be not exposed too much above the slot-rail crossed, thelatter is partly cutaway, asshown in Fig. 3 at H H. If said parts he toomuch exposed, the cable-grip is liable to be caught thereon.

The method ordinarily adopted of crossing slot-rails by the main railsof the track is to 7 cut the main rails oft'square and let thecarwheelsjump over the whole width of the slotrails. As said width isgenerally from four to five inches, the jar on the car and the wear orabrasion made by the car-wheel flanges upon the slot-rail crossed arevery considerable in amount; but by the construction herein shown anddescribed, and forming the subject of this invention, theheads of thestreet-car rails are caused to overlap the slot-rails, and thus the 8 5car-wheel flanges are prevented from wearing away the slot-railscrossed, and no jar or disagreeable noise is perceptible to theoccupants of the car as the car-wheels pass the slot-rails.

It is evident that any suitableforni of splicebar can be substituted forthe especial form of splicebar shown, and hereinbefore described.

Having thus fully described n1 y said cross ing, as of my invention Iclaim- 1. A slot-rail and girder-rail crossing con 5 sisting of maingirderrails and slot-rails secured together at the proper angle, and.with the girderrails overlapping the heads of the cut away so as topreserve the floor 0f the guard-rails intact, substantially as and forthe IQ purposes set forth.

EDWARD B. ENTWIsLE.

XVit-nesses:

\V. MILT. BROWN, GOMER WAL'rERs.

